Foams completes Peter Sloterdijk's celebrated Spheres trilogy: his 2,500-page "grand narrativeż retelling of the history of humanity, as related through the anthropological concept of the "Sphere. " For Sloterdijk, life is a matter of form, and in life, sphere formation and thought are two different labels for the same thing. The trilogy also together offers his corrective answer to Martin Heidegger's Being and Time, reformulating it into a lengthy meditation of Being and Spaceża shifting of the question of who we are to a more fundamental question of where we are. In this final volume, Sloterdijk's "plural spherologyż moves from the historical perspective on humanity of the preceding two volumes to a philosophical theory of our contemporary era, offering a view of life through a multifocal lens. If Bubbles was Sloterdijk's phenomenology of intimacy, and Globes his phenomenology of globalization, Foams could be described as his phenomenology of spatial plurality: how the bubbles that we form in our duality bind together to form what sociological tradition calls "society. " Foams is an exploration of capsules, islands, and hothouses that leads to the discovery of the foam city. The Spheres trilogy ultimately presents a theology without a Godża spatial theology that requires no God, whose death therefore need not be of concern.